Method of making a data centre

A method of making a data centre in an existing building, the building having a structure comprising a floor, walls and a roof, an air inlet for supply of air into the building, and an air outlet for removal of air from the building, wherein the method includes the following steps:

• installing multiple prefabricated data centre elements by:
• connecting to the air inlet an air handling module that is arranged to provide cooling capacity for the data centre;
• and
• installing in the interior of the building multiple cold aisle services modules by suspending each of said cold aisle services modules from the structure of the building above and spaced apart from the floor, each of said cold aisle services modules having:
• a length and a width,
• one or more integrated blanking portions including at least one ceiling member configured to enclose a top portion of a cold aisle,
• at least one clamp that attaches said cold aisle services module to an adjacent cold aisle services module,
• at least one gasket that seals one or more of the one or more integrated blanking portions of said cold aisle services module and one or more of the one or more integrated blanking portions of an adjacent cold aisle services module, and
• one or more data centre services extending along the length of the cold aisle services module and terminating in a connector that is connected to a corresponding connector of an adjacent data centre services module;
• wherein said installing the multiple cold aisle services modules comprises fastening each respective module of said cold aisle services modules to an adjacent cold aisle services module, thereby forming a seal between associated integrated blanking portions on adjacent cold aisle services modules;
• wherein the method additionally comprises installing in an interior of the building multiple racks of IT equipment, the racks being arranged in multiple parallel rows;
• the method being performed so that the floor, the racks, and the cold aisle services modules including the associated integrated blanking portions together define multiple parallel spaced apart cold aisles for entraining and encapsulating the flows of cooling air to the IT equipment arranged in the racks.